93' 650 L (big bore, old supertrapp, de-snorkled, de-smogged, dave's mods, oversized headers, clarke 4.7) Hello again everyone... Like most of you, I am feeling the chill of winter and will soon be parking the bike for the winter. I need a garage project and I would like to do some maintenace/rebuilding, etc... I have read many threads about what you have done to your bikes, but any advice on my project would be appreciated. First off, I ride 90% street (commuting) but I do not baby it. It has just over 20,000 miles with no smoke, but it does have some knocking from the top of the motor. It has plenty of power, but I do not think anything has been done to any of the internal engine components, clutch, etc. I am not a mechanic, but am handy and mechanically inclined, and I would like to do most if not all of this project myself (if possible). TO DO OR NOT TO DO? 1) How do I know if I need to have a valve job or adjustment done (or a cam)? If so are there instructions...? 2) Instructions on cleaning/re-greasing swingarm linkage, head tube bearings, and needle bearings? 3) Instructions on fork seals, fork oil and anything related to this maintenance? 4) Wheel stem bearings? 5) I know I need a new valve cover gasket...anyone done it lately and have some advice? 6) Anything else I haven't thought of that needs general maintenance after 20,000 miles? Thanks for all the help in advance!